Physics, asked by sreelucky86, 7 months ago

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Answered by ankush9547
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Answered by Anonymous
1

1.Evaporation removes heat from the water. When the pressure above the water reaches what is called the vapor pressure at the temperature of the water, boiling occurs. For example, at sea level atmospheric pressure (14.7 psia), boiling occurs at 212F or 100C. That is the vapor pressure of water at that temperature.

2.Ohm's law says current through certain materials(including metals) is proportional to the voltage applied across it. Ofcourse the proportionality constant (R or 1/R ) changes with temperature for metals ,but current is still proportional to voltage so Ohm law is still valid

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